Benefits of connecting Sage 50 desktop

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I currently have sage 50 ca premium accounting desktop.  Under the file menu i discovered the tab make a connection to sage accounting.  I dont want to switch to sage accounting, but i am wondering what benefits are there to having both? The only thing I have been able to find is this connection makes it possible to do mobile invoicing.  What about expense tracking? Recording customer Payments? Bank deposits? Will this connection make it possible to do all these things without being tied to my desk?  I have also heard that Sage will be releasing an online version similar to qbo. Should i continue to run our business in the stone age and wait for this or make the connection?